Equity (Schedule of Dividends Declared) (Details) - $ / shares	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Declared November 7, 2019
Common Stock Dividends, Per Share, Declared, Regular	$ 1.05
Declared February 19, 2020
Common Stock Dividends, Per Share, Declared, Regular	1.1025
Declared June 15, 2020
Common Stock Dividends, Per Share, Declared, Regular	1.1025
Declared December 17, 2018
Common Stock Dividends, Per Share, Declared, Regular		$ 1.00
Declared February 19, 2019
Common Stock Dividends, Per Share, Declared, Regular		1.05
Declared May 7, 2019
Common Stock Dividends, Per Share, Declared, Regular		1.05
Declared September 14, 2020
Common Stock Dividends, Per Share, Declared, Regular	$ 1.1025
Declared August 8, 2019
Common Stock Dividends, Per Share, Declared, Regular		$ 1.05